20.37.7.75 - Microsoft netblock but SpamCop sends reports to the spammer

[Snowbat]

20.33.0.0 - 20.128.255.255 is Microsoft but SpamC op reports 51.141.122.96 directly to the spammer via the broken "Using rdns to route to correct Microsoft department".

https://www.spamcop.net/sc?id=z6735265917z581a0996a7ae06ec9f727b0ddb2a3f4fz
Tracking message source: 20.37.7.75:

Routing details for 20.37.7.75
[refresh/show] Cached whois for 20.37.7.75 : abuse@microsoft.com
Using best contacts abuse@microsoft.com
Using rdns to route to correct Microsoft department
host 20.37.7.75 = fush15.acessonacional.com. (cached)
abuse net acessonacional.com = postmaster@acessonacional.com

If reported today, reports would be sent to:

Re: 20.37.7.75 (Administrator of network where email originates)

postmaster@acessonacional.com